Speedometer accuracy... how do you fix it?
 

So is there a calibration of some sorts for fixing the accuracy issues on 911 speedometers? Yeah, I could mount a GPS unit to the dash, but :rolleyes:

http://forums.pelicanparts.com/porsche-911-technical-forum/76869-speedometer-adjustment-tire-size.html?highlight=speedo

http://forums.pelicanparts.com/porsche-911-technical-forum/97658-speedometer-error-need-some-help.html?highlight=speedo

<b>Just for the record ... only the electronic speedos for '76 thru '83 models have the trimpot that can be adjusted. </b>

'84 - '89 3.2 Carreras use a different circuit using the ITT UAF2115 IC, and it is calibrated by changing a fixed resistor on the board. Here is a thread dealing with 3.2 Carrera speedos:

http://forums.pelicanparts.com/showthread.php?s=&threadid=247776&highlight=vdo+su cks

North Hollywood Speedo 818 761-5136

Thanks Jeremy. That sounds easier than drilling and such with "itsy bitsy" tools.

I'll look into it when I get my car back from... well... YOU.

Ha Ha. I can take it over there for you if you like.

Think perhaps I'll wait until I get the bill for this endeavor.
;)

We should be finished with the corner balance tonight. I'll give a ring when she is ready and we can discuss the speedo.

WOO HOO!!!